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High-Capacity Flexible Support Stanchions for a Large Liquid Argon Cryostat

  • Richard D. Luther
  • George T. Mulholland
  • Kurt J. Krempetz
Chapter
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 35)

Abstract

High-capacity flexible support stanchions are utilized in three large (5.2m) liquid argon cryostats to support the cold components. The stanchions serve to (1) transfer the weight of the inner vessel and its contents to the support carriage below the cryostat, (2) provide sufficient flexibility to allow the inner vessel to be cooled to liquid argon (or nitrogen) temperature without resort to a sliding connection, and (3) maintain the alignment of the two vessels about their common vertical centerline. Each stanchion consists of an array of parallel vertical plates attached to top and bottom plates by brazing. Alignment is maintained by orienting the plates such that their normals pass through the vertical centerline of the cryostat. Spherical bearings are used above and below the stanchions to compensate for minor misalignments and to distribute loads evenly. Heat leak into the lower part of the cryostat is minimized by the use of a passive heat intercept located above each stanchion. Features of the design, fabrication, and testing of the stanchions are described.

Keywords

Vertical Plate Liquid Argon Heat Leak Vertical Centerline Effective Length Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    G. T. Mulholland et al, Cryogenic Design of the D-Zero Liquid Argon Collider Calorimeter, in: “Advances in Cryogenic Engineering,” Vol 33, Plenum Press, New York (1988), p. 1121.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Richard D. Luther
    • 1
  • George T. Mulholland
    • 1
  • Kurt J. Krempetz
    • 1
  1. 1.Fermi National Accelerator LaboratoryBataviaUSA

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